7th Heaven Loops, FLS Time Stretch and BPM revisited

17/12/13        7th Heaven Loops and FLS Time Stretch and BPM revisited

This Post will be added to over time as I progress (maybe!?) on various aspects on this track, and hopefully others on the Govan/Fellowship live album. This is a big step in the jazz direction for me and really difficult. The chords, progressions and melodies are way beyond what I have tried to learn in the past, so it’s ambitious, but there is no rush. Just plod on as I do these days. Since first learning the neck notes yesterday, I had a great day tone wise at DBS with the Fallen Angel, the Guvnor and Echohead, back sounding as I had weeks ago before the Guvnor EQ knobs got moved out of whack by my curious lecturer, and I just couldn’t quite find the settings again for a whiile – it’s amazing what a tiny tweak of the treble knobs can do! EQ is probably the most overlooked yet obvious place to start to get the exact tone you want before you start adding other FX and you won’t play well and happily (do I ever?! Rarely.) until you get your tone right. Here’s a bit of it – lovely cutting harmonics on all pickups.

I’ll take a pic of the Guvnor controls so I don’t lose the settings for the Angel, (and it’s tone settings) – it sounded great on all pickups today,

Guv2.jpg

Angel EQ.jpg

keeping each’s tone character that suits most of the Govan backing tracks, while still having the drive and harmonics I like – heard in the vid:

This Post is intended to help beginners get an idea of what a learning curve may be for learning a complex piece of music that is beyond their current level, so that in a few months I can look back also and see what parts of the track have been learned and which are still a problem, as I only just learned the notes physically on guitar yesterday as you can see in the video:

Today was my first go at playing along to the while track to start learning it, so it’s all errors, but you can see that I’m at normal to tempo and sometimes make the riff but sometimes not. Some parts were easy-ish by ear, but most of the track structure is alien to me, by ear AND chordal structure. I will take the time to learn the chords – really interested in the latin section, but for now it’s a start:

I had done the exercise on Logic some weeks back for that Post, adding the notes in the Piano Roll by ear, but this didn’t make any difference to making learning it on guitar any easier as I don’t read dots so don’t see frets in terms of note names – A, B, C etc.


First, a useful step in FLS, re the BPM ID and time stretching to learn pieces of music whose tempo is too fast for you to play and get an idea what your BPM are in numerical terms for specific types and pieces of music. This can help you with composition using any DAW, and if you want to reverse engineer a piece of music to study the chord changes or other aspect of a tune. I am doing this as an experiment at DBS with Doobie Vibe and Cuban Heels at present in Logic9 aiming at replacing the mp3 with Apple sounds.

First, here’s the bounced mp3s:

7thHeavenLoop.mp3

7thHeavenSlow.mp3

Here’s how they were done:

Drag the mp3 to the Playlist track:


I manually worked out the tempo first by trial and error as an exercise, by getting the section loop wave peaks to fall as close to a bar as possible while listening to the metronome and zooming in – slowly increasing the tempo from the default 130 BPM so the metronome was as close as possible to the drum beat.

Now this is interesting, as it shows the timing accuracy of the band in general over lots of bars for a couple of mins, as I’m guessing the drummer wasn’t playing to a click track for this live show, so if not, these guys are really good – consistent – but then – it’s Guthrie and Co. so what else would it be but perfect timing ?

Zoom in using Ctrl/Left Click for a box round the bars 21-25.

The riff starts around bar 21 beat 1, so it can be looped to bar 25, beat 1 by setting the red loop bar:


With this looping, this becomes the section required for cutting, copying and pasting later to be bounced as the looped MP3.

If you listen to the metronome with this loop it is slightly slow, so drifts out of time with the drums before the loop end. You can increase the tempo 1 BPM at a time and move the whole sample so the peak of the first wave is right on a bar marker. You can’t move the sample to the left without chopping the beginning off, which is fine as that’s not required, or you can move the whole thing right then reset the loop bar – I’ll cut then delete the section before then move the sample left:


Changing the Snap to a finer resolution to get more accuracy with finer beats lines, you can get the sample start very accurately on a bar then reset a new loop bar over 4 bars:


At 136 BPM you should find the wave peaks for the riff start and end are bang on a bar line:



You can now razor this sample to the wave peaks accurately and make say, a 16 bar piece for bouncing out if you wanted to play it elsewhere to practice this riff over and over as I have to put on the web.


Now to check what FLS thinks. Go to the Sequencer window and right click the waveform – detect tempo:




Click the 100-200 BPM box and watch the process:



So FLS agrees – with an accurate 136.098 BPM – cool.

To slow the track down without changing pitch, you can use Edison as explained in a prior Post here:

http://stevepedwards.com/wp/?p=4224

Copy the section, paste back as new, edit more accurately to loop, change tempo using the Time button, Save Sample As, or export back as Sequencer track. Solo this to bounce out as a slower version if required.